CN109085525A - A kind of Lighting position machine detection calibration system and method - Google Patents
A kind of Lighting position machine detection calibration system and method Download PDFInfo
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- CN109085525A CN109085525A CN201811123588.4A CN201811123588A CN109085525A CN 109085525 A CN109085525 A CN 109085525A CN 201811123588 A CN201811123588 A CN 201811123588A CN 109085525 A CN109085525 A CN 109085525A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references
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Abstract
The invention discloses a kind of Lighting position machine detection calibration system and method, system includes sequentially connected high-frequency electromagnetic field generator, impedance matching and driving circuit, programmable DDS arbitrary waveform generator, data processing and display terminal, aerial testing set.Its test method is to determine the experimental situation of detection calibration；Programmable DDS arbitrary waveform generator simulation generates lightning current excitation pulse signal, and the electromagnetic coil through impedance matching and driving circuit driving high-frequency electromagnetic generator generates variation magnetic field；Orthogonal loop antenna is placed in uniform variation magnetic field, its output signal accesses orthogonal loop aerial testing set, apparatus measures go out the reception bandwidth and gain of antenna, and then wireless test instrument connect programmable DDS arbitrary waveform generator with display terminal by control, complete the measurement to antenna performance.
Description
Technical field
The present invention relates to Lighting position machines to detect calibration technique field, detects and marks more particularly to a kind of Lighting position machine
Determine system and method.
Background technique
Thunder and lightning is the strong electric discharge phenomena in nature.In China, shown according to lightning detection network data recent years, every year
It will be about occurring 13,000,000 times or so cloud-to-ground flash.In the modern life, lightning seriously threatens the peace of human life's property
Entirely, ignite forest, priming system etc. causes heavy losses, to national defence such as Aeronautics and Astronautics, communication, electric power, building, petrochemical industries and
Many departments of national economy suffer from very great influence.At the end of the 20th century, in the International Decade for Disaster Reduction activity of the UN organizations,
Lightning Disaster is listed in one of ten the Nature disasters of most serious.
Lightning monitoring Location Theory and technical research start from earlier 1900s late nineteenth century, in lightning intrusion, monitoring
And the position of core is in protection field.Lighting position machine is the novel detecting devices for lightning monitoring and early warning, usually
When can be automatic, continuous, the generation of real-time monitoring lightning by the lightning location net that multiple (3 or more) Lighting position machines form
Between, the characteristic parameters such as orientation, intensity, polarity.The long-term accumulation of Lighting Position Data, thus it is possible to vary lightning artificial observation and lack
The situation of the quantitative observations such as thunder and lightning Density Distribution, analysis and research Lightning Positioning Data, which can further be deepened, recognizes lightning mechanism
To know, Lightning Positioning Data is also the important evidence of Lightning Disaster risk assessment, Lightning Disaster accident identification and Lightning Protection Engineering Design,
Lightning Positioning Data has become current lightning protection mitigation and works indispensable capsule information.It is sent out at present in the worlds such as Europe, the U.S.
The lightning location net of covering all Europe and North America is completed up to country, China's meteorological system has also been built is determined by more than 500 a lightnings
The lightning location net of covering China the greater part of position instrument composition, dodges the construction and service application of positioning net, mentions for meteorological department
A wide range of, long range, high efficiency and high-precision lightening activity position and development evolvement information are supplied, in lightning protection mitigation work
Important function is played.
Due to the randomness that lightning occurs, the detection accuracy of lightning location net, detection efficient and peak point current accuracy
Inspection is a global problem.Simultaneously last decade, lightning positioning system also pass through service application the construction of China's lightning location net
Multiple technology upgrading transformation, but also do not have so far there are no the technical specification that a set of pair of Lighting position machine carries out detection calibration so far
There is a third-party institution that can carry out detection calibration to Lighting position machine performance, the performance parameter of Lighting position machine can only be by each
Manufacturer makes by oneself, and electronic equipment must be varied using performance after many years, but the lightning that each province of China business uses
There are no a places can carry out detection calibration so far for position indicator, and there is an urgent need to build a development Lighting position machine performance inspection
The fixed third party testing agency of mark, and key problem is the technical method for needing to research and solve Lighting position machine detection calibration,
Therefore, carrying out the detection calibration technique research of VLF/LF Lighting position machine has indispensable significance.
Currently, lightning location host will have VLF/LF lightning location net, (main detection ground dodges, and part can also detect cloud
Dodge, but detection efficient is lower) and VHF/HF lightning location net (main detection cloud dodges).The U.S., Europe, Japan, Brazil, the big benefit of Australia
The countries and regions such as Asia all establish lightning location net.Wherein, US and European lightning detection network all realizes sudden strain of a muscle and cloud over the ground
The monitoring of sudden strain of a muscle, and European lightning detection network has been realized in the three-dimensional localization to lightning, and Lighting position machine is mainly VLF/LF
Lighting position machine, VHF/HF Lighting position machine are auxiliary densification network.Since the harm that ground sudden strain of a muscle is dodged relative to cloud is bigger, and VLF/
The technology of LF Lighting position machine is more mature, and construction cost is much lower with respect to VHF/HF lightning location net.China is meteorological at present
The lightning location net that department and power department business use nearly all is VLF/LF lightning location net.It is fixed that domestic development produces lightning
4~5 producers of position instrument are all to carry out consistency calibration, method using similar method are as follows: utilize low frequency generator
Signal acquisition circuit (coupling without antenna) is directly inputted into, by time measured value to Lighting position machine to be measured, lateral
The parameters such as measured value, amplitude measure, self-test measured value and standard Lighting position machine compare, and show whether instrument to be measured is full
Sufficient technical requirement is realized to Lighting position machine inspection and calibration.
Summary of the invention
The purpose of the present invention is to provide a kind of Lighting position machine detection calibration system and methods, by fixed to lightning to be measured
The parameters such as time measured value, lateral measured value, amplitude measure, self-test measured value and standard Lighting position machine of position instrument carry out pair
Than showing whether instrument to be measured meets technical requirement, realizing to Lighting position machine inspection and calibration.
To achieve the goals above, the technical scheme is that
A kind of Lighting position machine detects calibration system, including sequentially connected high-frequency electromagnetic field generator, impedance matching with
Driving circuit, programmable DDS arbitrary waveform generator, data processing and display terminal, aerial testing set, the programmable DDS
Arbitrary waveform generator simulation generates the thunder and lightning waveform of arbitrary shape, through impedance matching and driving circuit driving electromagnetic field of high frequency hair
Raw device generates variation magnetic field, and the electromagnetic coil that the orthogonal loop antenna of Lighting position machine is placed in high-frequency electromagnetic field generator is generated
In variation magnetic field, output signal accesses aerial testing set, and aerial testing set measures the reception bandwidth and increasing of orthogonal loop antenna
Benefit, completes the measurement to orthogonal loop antenna performance, and test result is input to data processing and display eventually by the aerial testing set
End, data processing and display terminal compare measurement data and programmable DDS arbitrary waveform generator analogue data, complete
Detection calibration.
Further, the electromagnetic coil is U-shaped structure or spiral cast structure；When the electromagnetic coil is U-shaped knot
When structure, the electromagnetic coil of the U-shaped structure is high-frequency electromagnetic coil, and orthogonal loop antenna to be measured is placed between the pole N and the pole S and and center
Magnetic induction line direction angle at 45 °；When the electromagnetic coil is spiral cast structure, which is a large-sized cartridge type
High-frequency electromagnetic coil, orthogonal loop antenna to be measured are placed in coil inside centre position, and antenna and magnetic line of force direction folder at 45 °
Angle.
Further, the Lighting position machine detection calibration system further includes wave shape display system, the wave shape display system
Including coupler and the waveform oscilloscope being connected with coupler, the coupler is connected to the electromagnetism of high-frequency electromagnetic field generator
On coil, monitoring high-frequency electromagnetic field generator generates waveform state, whether parameter meets sets requirement；Correspondingly, described compile
The test signal that the simulation of journey DDS arbitrary waveform generator generates is coupled on orthogonal loop antenna by coupler.
Further, the Lighting position machine detection calibration system further includes power-supply system；Power-supply system gives lightning to be measured
Other components that position indicator, Lighting position machine detect calibration system provide unified power supply, guarantee that electromagnetic environment is consistent.
Further, the Lighting position machine detection calibration system further includes RS232 serial communication modular, lightning to be measured
Position indicator aerial testing set, data processing are connected with display terminal by RS232 serial communication modular.
Further, the Lighting position machine detection calibration system is separate unit Lighting position machine detection Calibration System or is more
Platform Lighting position machine detects Calibration System；When Lighting position machine detection calibration system is that more Lighting position machines detect calibration
When system, the more Lighting position machines detection Calibration System includes several couplers, one of coupler and waveform
Display is connected, remaining coupler is connected on high-frequency electromagnetic field generator and can be compiled by the connection of high-frequency electromagnetic field generator
Journey DDS arbitrary waveform generator, several Lighting position machines are whole by RS232 serial communication modular and data processing and display
End connection.
Further, the present invention and a kind of Lighting position machine detection scaling method is provided, the step of this method is:
S1, the experimental situation for determining detection calibration；
S2, antenna measurement, design a programmable DDS arbitrary waveform generator, and simulation generates lightning current driving pulse letter
Number, signal amplitude, rise and fall are along can set, the electromagnetic wire through impedance matching and driving circuit driving high-frequency electromagnetic generator
Circle generates variation magnetic field；Orthogonal loop antenna is placed in uniform variation magnetic field, and output signal accesses orthogonal loop aerial testing set,
Apparatus measures go out the reception bandwidth and gain of antenna, and then wireless test instrument connect programmable DDS with display terminal by control
Arbitrary waveform generator completes the measurement to antenna performance；
S3, Lighting position machine calibration are surveyed by the time measured value to Lighting position machine to be measured, lateral measured value, amplitude
The standard parameter that magnitude, self-test measured value parameter and the signal generator of calibration export compares, and show that instrument to be measured is
It is no to meet technical requirement, realize that the detection to Lighting position machine is demarcated, and realize to the calibration simultaneously of more Lighting position machines,
Survey survey meter coincident indicator.
Compared with prior art, the advantages and positive effects of the present invention are:
The present invention proposes that a kind of Lighting position machine detects calibration system and method, may be programmed random waveform technology using DDS,
It can produce the thunder and lightning waveform of arbitrary shape, waveforms amplitude, rise and fall are along can set, by driving electromagnetic field of high frequency
Device, will test signal by Space Coupling arrive orthogonal loop antenna, simulation generate thunder and lightning low frequency signal, by it is wired directly input with
The mode that spatial is coupled to Lighting position machine carries out signal input, by the methods of quantitative test to Lighting position machine signal
It is handled, and instrument performance is determined according to the characteristic quantity of Lighting position machine, laboratory test has been carried out to Lighting position machine, from
And the data reliability and measurement accuracy to VLF/LF lightning positioning system have carried out effective verifying, whether obtain instrument to be measured
Meet technical requirement, realizes to Lighting position machine inspection and calibration.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is the composition block diagram that separate unit Lighting position machine of the invention detects Calibration System；
Fig. 2 is the composition block diagram that more Lighting position machines of the invention detect Calibration System；
Fig. 3 is the magnetic field of magnets distribution map of U-shaped structure of the invention；
Fig. 4 is the magnetic field of magnets distribution map of spiral cast structure of the invention；
Fig. 5 is aerial position structure chart of the Lighting position machine in U-shaped structure measurement of magnetic field；
Fig. 6 is aerial position structure chart of the Lighting position machine when spiral cast structural magnetic field is tested.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
As shown in figures 1 to 6, Lighting position machine of the invention detects calibration system, including sequentially connected electromagnetic field of high frequency hair
Raw device, impedance matching and driving circuit, programmable DDS arbitrary waveform generator, data processing and display terminal, antenna measurement
Instrument, the programmable DDS arbitrary waveform generator simulation generates the thunder and lightning waveform of arbitrary shape, through impedance matching and driving circuit
It drives high-frequency electromagnetic field generator to generate variation magnetic field, the orthogonal loop antenna of Lighting position machine is placed in high-frequency electromagnetic field generator
The variation magnetic field that generates of electromagnetic coil in, output signal accesses aerial testing set, and aerial testing set measures orthogonal loop day
The reception bandwidth and gain of line, complete the measurement to orthogonal loop antenna performance, and test result is input to by the aerial testing set
Data processing and display terminal, data processing and display terminal simulate measurement data and programmable DDS arbitrary waveform generator
Data compare, and complete detection calibration.
Further, the electromagnetic coil is U-shaped structure or spiral cast structure；When the electromagnetic coil is U-shaped knot
When structure, the electromagnetic coil of the U-shaped structure is high-frequency electromagnetic coil, and orthogonal loop antenna to be measured is placed between the pole N and the pole S and and center
Magnetic induction line direction angle at 45 °；When the electromagnetic coil is spiral cast structure, which is a large-sized cartridge type
High-frequency electromagnetic coil, orthogonal loop antenna to be measured are placed in coil inside centre position, and antenna and magnetic line of force direction folder at 45 °
Angle.
Further, the Lighting position machine detection calibration system further includes wave shape display system, the wave shape display system
Including coupler and the waveform oscilloscope being connected with coupler, the coupler is connected to the electromagnetism of high-frequency electromagnetic field generator
On coil, monitoring high-frequency electromagnetic field generator generates waveform state, whether parameter meets sets requirement；Correspondingly, described compile
The test signal that the simulation of journey DDS arbitrary waveform generator generates is coupled on orthogonal loop antenna by coupler.
Further, the Lighting position machine detection calibration system further includes power-supply system；Power-supply system gives lightning to be measured
Other components that position indicator, Lighting position machine detect calibration system provide unified power supply, guarantee that electromagnetic environment is consistent.
Further, the Lighting position machine detection calibration system further includes RS232 serial communication modular, lightning to be measured
Position indicator aerial testing set, data processing are connected with display terminal by RS232 serial communication modular.
Further, the Lighting position machine detection calibration system is separate unit Lighting position machine detection Calibration System or is more
Platform Lighting position machine detects Calibration System；When Lighting position machine detection calibration system is that more Lighting position machines detect calibration
When system, the more Lighting position machines detection Calibration System includes several couplers, one of coupler and waveform
Display is connected, remaining coupler is connected on high-frequency electromagnetic field generator and can be compiled by the connection of high-frequency electromagnetic field generator
Journey DDS arbitrary waveform generator, several Lighting position machines are whole by RS232 serial communication modular and data processing and display
End connection.
Further, the present invention and a kind of Lighting position machine detection scaling method is provided, the step of this method is:
S1, the experimental situation for determining detection calibration；
S2, antenna measurement, design a programmable DDS arbitrary waveform generator, and simulation generates lightning current driving pulse letter
Number, signal amplitude, rise and fall are along can set, the electromagnetic wire through impedance matching and driving circuit driving high-frequency electromagnetic generator
Circle generates variation magnetic field；Orthogonal loop antenna is placed in uniform variation magnetic field, and output signal accesses orthogonal loop aerial testing set,
Apparatus measures go out the reception bandwidth and gain of antenna, and then wireless test instrument connect programmable DDS with display terminal by control
Arbitrary waveform generator completes the measurement to antenna performance；
S3, Lighting position machine calibration are surveyed by the time measured value to Lighting position machine to be measured, lateral measured value, amplitude
The standard parameter that magnitude, self-test measured value parameter and the signal generator of calibration export compares, and show that instrument to be measured is
It is no to meet technical requirement, realize that the detection to Lighting position machine is demarcated, and realize to the calibration simultaneously of more Lighting position machines,
Survey survey meter coincident indicator.
Compared with prior art, the advantages and positive effects of the present invention are:
The present invention proposes that a kind of Lighting position machine detects calibration system and method, may be programmed random waveform technology using DDS,
It can produce the thunder and lightning waveform of arbitrary shape, waveforms amplitude, rise and fall are along can set, by driving electromagnetic field of high frequency
Device, will test signal by Space Coupling arrive orthogonal loop antenna, simulation generate thunder and lightning low frequency signal, by it is wired directly input with
The mode that spatial is coupled to Lighting position machine carries out signal input, by the methods of quantitative test to Lighting position machine signal
It is handled, and instrument performance is determined according to the characteristic quantity of Lighting position machine, laboratory test has been carried out to Lighting position machine, from
And the data reliability and measurement accuracy to VLF/LF lightning positioning system have carried out effective verifying, whether obtain instrument to be measured
Meet technical requirement, realizes to Lighting position machine inspection and calibration.
Claims (7)
1. a kind of Lighting position machine detects calibration system, it is characterised in that: including sequentially connected high-frequency electromagnetic field generator, resistance
Anti- matching and driving circuit, programmable DDS arbitrary waveform generator, data processing and display terminal, aerial testing set, it is described can
The thunder and lightning waveform that the simulation of DDS arbitrary waveform generator generates arbitrary shape is programmed, drives high frequency through impedance matching and driving circuit
Electromagnetic field generator generates variation magnetic field, and the orthogonal loop antenna of Lighting position machine is placed in the electromagnetic wire of high-frequency electromagnetic field generator
It encloses in the variation magnetic field generated, output signal accesses aerial testing set, and aerial testing set measures the reception of orthogonal loop antenna
Bandwidth and gain, complete the measurement to orthogonal loop antenna performance, and test result is input to data processing by the aerial testing set
With display terminal, data processing and display terminal carry out measurement data and programmable DDS arbitrary waveform generator analogue data
Detection calibration is completed in comparison.
2. Lighting position machine as described in claim 1 detects calibration system, which is characterized in that the electromagnetic coil is U-shaped knot
Structure or spiral cast structure；When the electromagnetic coil is U-shaped structure, the electromagnetic coil of the U-shaped structure is litz wire
Circle, orthogonal loop antenna to be measured be placed between the pole N and the pole S and with center magnetic induction line direction angle at 45 °；When the electromagnetic coil is spiral shell
When revolving cylinder structure, which is a large-sized cartridge type high-frequency electromagnetic coil, and orthogonal loop antenna to be measured is placed in coil
Internal centre position, and antenna and magnetic line of force direction angle at 45 °.
3. Lighting position machine as described in claim 1 detects calibration system, which is characterized in that the Lighting position machine detection mark
Determining system further includes wave shape display system, which includes that coupler and the waveform being connected with coupler are shown
Device, the coupler are connected on the electromagnetic coil of high-frequency electromagnetic field generator, and monitoring high-frequency electromagnetic field generator generates waveform
Whether state, parameter meet sets requirement；Correspondingly, the test letter that the programmable DDS arbitrary waveform generator simulation generates
Number it is coupled on orthogonal loop antenna by coupler.
4. Lighting position machine as described in claim 1 detects calibration system, which is characterized in that the Lighting position machine detection mark
Determining system further includes power-supply system；Power-supply system detects other groups of calibration system to Lighting position machine to be measured, Lighting position machine
Part provides unified power supply, guarantees that electromagnetic environment is consistent.
5. Lighting position machine as described in claim 1 detects calibration system, which is characterized in that the Lighting position machine detection mark
Determining system further includes RS232 serial communication modular, and Lighting position machine aerial testing set, data processing and display terminal to be measured are logical
RS232 serial communication modular is crossed to be connected.
6. Lighting position machine as described in claim 1 detects calibration system, which is characterized in that the Lighting position machine detection mark
Determine system to be separate unit Lighting position machine detection Calibration System or be more Lighting position machine detection Calibration Systems；When the lightning is fixed
When position instrument detection calibration system is that more Lighting position machines detect Calibration System, the more Lighting position machines detect Calibration System
Including several couplers, one of coupler is connected with waveform oscilloscope, remaining coupler is connected to high-frequency electromagnetic
Programmable DDS arbitrary waveform generator, several lightning locations are connected on field generator and by high-frequency electromagnetic field generator
Instrument is connect by RS232 serial communication modular with data processing with display terminal.
7. a kind of Lighting position machine detects scaling method, it is characterised in that: the step of this method is:
S1, the experimental situation for determining detection calibration；
S2, antenna measurement, design a programmable DDS arbitrary waveform generator, and simulation generates lightning current excitation pulse signal, letter
Along can set, the electromagnetic coil through impedance matching and driving circuit driving high-frequency electromagnetic generator is produced for number amplitude, rise and fall
It changes magnetizing field；Orthogonal loop antenna is placed in uniform variation magnetic field, and output signal accesses orthogonal loop aerial testing set, instrument
Measure the reception bandwidth and gain of antenna, then wireless test instrument by control connect with display terminal may be programmed DDS it is any
Waveform generator completes the measurement to antenna performance；
S3, Lighting position machine calibration, by time measured value to Lighting position machine to be measured, lateral measured value, amplitude measure,
The standard parameter that self-test measured value parameter and the signal generator of calibration export compares, and show whether instrument to be measured meets
Technical requirement realizes that the detection to Lighting position machine is demarcated, and realizes that, to the calibration simultaneously of more Lighting position machines, probing is surveyed
Instrument coincident indicator.
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| CN110082697A (en) * | 2019-05-13 | 2019-08-02 | 国网电力科学研究院武汉南瑞有限责任公司 | A kind of method and apparatus for demarcating lightning location system performance parameter |
| CN113495243A (en) * | 2021-08-17 | 2021-10-12 | 中国气象局气象探测中心 | Lightning locator measuring device |
| CN113960377A (en) * | 2021-10-22 | 2022-01-21 | 湖北省气象信息与技术保障中心 | Anti-interference three-dimensional lightning detection position indicator |
| CN116299111A (en) * | 2022-12-02 | 2023-06-23 | 中国气象局气象探测中心 | Lightning positioning instrument detection fault diagnosis instrument |
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| CN113960377A (en) * | 2021-10-22 | 2022-01-21 | 湖北省气象信息与技术保障中心 | Anti-interference three-dimensional lightning detection position indicator |
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Application publication date: 20181225 |